| Message ID | 20211107161802.323125-1-masahiroy@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: vdso: remove -nostdlib compiler flag | expand |
On Mon, 8 Nov 2021 01:18:02 +0900, Masahiro Yamada wrote: > The -nostdlib option requests the compiler to not use the standard > system startup files or libraries when linking. It is effective only > when $(CC) is used as a linker driver. > > Since commit 691efbedc60d ("arm64: vdso: use $(LD) instead of $(CC) > to link VDSO"), $(LD) is directly used, hence -nostdlib is unneeded. > > [...] Applied to arm64 (for-next/core), thanks! [1/1] arm64: vdso: remove -nostdlib compiler flag https://git.kernel.org/arm64/c/34688c76911e Cheers,
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index 945e6bb326e3..700767dfd221 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -23,7 +23,7 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti # potential future proofing if we end up with internal calls to the exported # routines, as x86 does (see 6f121e548f83 ("x86, vdso: Reimplement vdso.so # preparation in build-time C")). -ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \ +ldflags-y := -shared -soname=linux-vdso.so.1 --hash-style=sysv \ -Bsymbolic --build-id=sha1 -n $(btildflags-y) -T ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index c8fec493a450..6c01b63ff56d 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -102,7 +102,7 @@ VDSO_AFLAGS += -D__ASSEMBLY__ # From arm vDSO Makefile VDSO_LDFLAGS += -Bsymbolic --no-undefined -soname=linux-vdso.so.1 VDSO_LDFLAGS += -z max-page-size=4096 -z common-page-size=4096 -VDSO_LDFLAGS += -nostdlib -shared --hash-style=sysv --build-id=sha1 +VDSO_LDFLAGS += -shared --hash-style=sysv --build-id=sha1 # Borrow vdsomunge.c from the arm vDSO
The -nostdlib option requests the compiler to not use the standard system startup files or libraries when linking. It is effective only when $(CC) is used as a linker driver. Since commit 691efbedc60d ("arm64: vdso: use $(LD) instead of $(CC) to link VDSO"), $(LD) is directly used, hence -nostdlib is unneeded. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> --- arch/arm64/kernel/vdso/Makefile | 2 +- arch/arm64/kernel/vdso32/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)